Global ETD Search

11	Prédios de rendimento das avenidas de Ressano Garcia 1889-1926-caracterização construtiva Silva, Isabel Maria Rodrigues da January 2000 (has links) No description available. Architecture Multi-family dwellings
12	Module 09: Site Plan Johnson, Keith, Uddin, Mohammad Moin 01 January 2022 (has links) (PDF) https://dc.etsu.edu/entc-2160-oer/1010/thumbnail.jpg OER ENTC 2160 architectural CAD site planning engineering Architectural Engineering Civil and Environmental Engineering Electrical and Computer Engineering Engineering Education
13	A praça pública em Portugal no contexto do urbanismo oitocentista Garcia, Carla Alexandra Soares January 2000 (has links) No description available.
14	ANALYTICAL AND EXPERIMENTAL ASSESSMENT OF REINFORCED CONCRETE BLOCK STRUCTURAL WALLS RESPONSE TO BLAST LOADS ElSayed, Mostafa 11 1900 (has links) The current thesis focuses on estimating the damage levels and evaluating the out-of-plane behavior of fully-grouted reinforced masonry (RM) structural walls under blast loading, a load that they are typically not designed to resist. Twelve third-scale RM walls were constructed and tested under free-field blast tests. Three different reinforcement ratios and three different charge weights have been used on the walls, with scaled distances down to 1.7 m/kg1/3 and two different boundary conditions, to evaluate the walls’ performances. In general, the results show that the walls are capable of withstanding substantial blast load levels with different extents of damage depending on their vertical reinforcement ratio and scaled distance. It worth mention that the current definitions of damage states, specified in ASCE/SEI 59-11 (ASCE 2011) and CAN/CSA S850-12 (CSA 2012) standards, involve global response limits such as the component support rotations that are relatively simple to calculate. However, these quantitative damage state descriptors can be less relevant for cost–benefit analysis. Moreover, the reported experimental results showed that the use of quantitative versus qualitative damage descriptors specified by North American blast standards [ASCE 59-11 (ASCE 2011) and CSA S850-12 (CSA 2012)] can result in inconstancies in terms of damage state categorization. Therefore, revised damage states that are more suitable for a cost–benefit analysis, including repair technique and building downtime, were presented. These damage states are currently considered more meaningful and have been used to quantify the post-earthquake performance of buildings. In addition, a nonlinear single-degree-of-freedom (SDOF) model is developed to predict the out-of-plane behavior of RM structural walls under blast loading. The proposed SDOF model is first verified using quasi-static and free-field blast tests and then subsequently used to extend the results of the reported experimental test results with different design parameters such as threat level, reinforcement ratio, available block width, wall height, and material characteristics. In general, brittle behavior was observed in the walls with a reinforcement ratio higher than 0.6%. This is attributed to the fact that seismically detailed structural masonry walls designed to respond in a ductile manner under in-plane loads might develop brittle failure under out-of-plane loads because of their reduced reinforcement moment arm. In addition, increased ductility can be achieved by using two reinforcement layers instead of a single layer, even if the reinforcement ratio is reduced. Also, it is recommended to consider the use of larger concrete masonry blocks for the construction of RM structural walls that are expected to experience blast loads in order to reduce the slenderness ratio and for the placement of two reinforcement layers. Finally, a probabilistic risk assessment (PRA) framework is proposed in order to develop design basis threat (DBT) fragility curves for reinforced concrete block shear wall buildings, which can be utilized to meet different probabilities of failure targets. To illustrate the proposed methodology, an application is presented involving a medium–rise reinforced masonry building, under different DBT levels. The DBT fragility curves are obtained via Monte Carlo sampling of the random variables and are used to infer the locations, within the building premises, that are most suitable for the erection of barriers for blast hardening. / Thesis / Doctor of Philosophy (PhD) Blast loads Blast scaling Experimental tests Out-of-plane resistance Probabilistic risk assessment Reinforced concrete masonry Risk Site planning Structural walls Uncertainty
15	BIM i produktionsplanering : Förutsättningar och ledarskap / BIM in production planning : Prerequisites and leadership Martinsson, Mattias, Wennberg, Anders January 2018 (has links) Som en följd av att byggbranschen implementerar och använder sig av BIM har nya yrkesroller skapats för att hantera och leda arbetet. Forskning har visat att det råder en osäkerhet gällande dessa yrkesroller, vilka arbetsuppgifter och vilka faser de ska vara delaktig i. BIM används generellt sett i större utsträckning i projekteringsfasen än produktionsfasen, samtidigt visar forskning att det finns fördelar om BIM används genom alla faser. Denna studie har undersökt hur det i planeringen inför produktion skulle kunna gå att använda sig av BIM, vilka förutsättningar som finns och vilken roll som ska leda arbetet. Baserat på en intervjustudie presenteras fyra arbetsgångar gällande några av produktionsplaneringens områden: Arbetsmiljö, APD-plan, Tidsplan, Kalkyl och hur dessa skulle kunna genomföras med stöd av BIM. I en enkätstudie har sedan platschefer, arbetsledare och kalkylatorer fått svara på frågor angående inställning, förutsättningar och ledarskap kopplat till arbetsgångarna. Fallstudien visar att det finns goda förutsättningar att använda BIM i produktionsplanering då de anställda ser en stor nytta och är positiva till att arbeta med stöd av BIM. Samtidigt konstateras att kunskapsnivå är blandad och skiljer mellan områdena vilket kan skapa ett hinder i implementeringen. För att arbeta med stöd av BIM anses den nya rollen, i studien kallad BIM-ledare, som viktig. I arbetet med kalkyl, där de anställda visar en högre erfarenhet och kunskap om BIM än övriga områden, anses BIM-ledaren framförallt behövas som tekniskt stöd. I övriga områden anses BIM-ledaren istället ha en mer närvarande roll och vara delaktig i framtagandet. BIM-ledaren anses behöva ha stor erfarenhet av byggprocessen. På vilken yrkesroll ansvaret för modellen skall ligga på i produktionsplanering finns en osäkerhet där BIM-ledare, platschef och projekteringsledare är tänkbara kandidater. Baserat på personalens bedömda engagemang och kompetens har studien utifrån teorin om situationsanpassat ledarskap presenterat olika ledarstilar som kan ses som vägledning för BIM-ledaren. För arbetet med kalkyl rekommenderas en delegerande ledarstil, för arbetet med arbetsmiljö och APD-planeringen en coachande och stödjande ledarstil medan arbetet med tidplan en mer instruerande ledarstil. / As a result of the AEC industry implementing and using BIM, new roles have been created to manage and lead the work. Research has shown that there are uncertainties regarding these roles, which tasks they should perform and which phases they will be involved in. BIM is generally used more during the design phase than the production phase, even though research shows that there are advantages if BIM is used throughout all phases. This study has investigated how the planning for production could make use of BIM, the conditions for implementation and the role that will manage the work. Based on an interview study, four areas of production planning: safety planning, site planning, time scheduling and calculation are examined. A scenario for each area and how these could be implemented with BIM is presented followed by a survey of the employees working on the matters and their thoughts and their attitude towards it. The case study shows that there are good conditions for using BIM in production planning as employees see great benefits and are positive about working with BIM. At the same time, it is noted that knowledge levels differentiate between the employees and between the areas, which can create an obstacle to the implementation. The BIM manager is considered important in all four areas. In the work with calculations, where employees show a higher experience and knowledge level of BIM than other areas, the role is considered to be needed as mostly technical support. In other areas, BIM managers are considered to take more part of the work process. They show that the BIM manager is considered to have extensive experience in construction. There is an uncertainty about the responsibility for the model in production planning where the BIM manager, site manager and design manager are all considered for the task. Based on the employees estimated commitment and competence, the study has presented different leadership styles with respect to the theory of situational leadership. This could be seen as guidance for the BIM manager. For the work with calculations, a delegating leadership style is recommended, for safety and site planning a coaching and supporting leadership style is recommended. For the work with time scheduling a more directing leadership style is recommended. BIM production planning safety planning site planning construction logistics plan time plan calculation leadership management BIM produktionsplanering Arbetsmiljö APD-plan Kalkyl Tidsplan ledarskap Engineering and Technology Teknik och teknologier
16	A evolução de Lisboa e a Rua das Portas de Santo Antão (1879-1926) Cabral, Manuel Morais Villaverde January 1997 (has links) No description available.
17	Kwasizabantu : a spatial development framework and detail design Wentzel, Dorithea Maria 06 May 2009 (has links) The aim of this thesis is to analyse and interpret the existent and future needs of the people and environment of the mission station, Kwasizabantu,to ensure settlement growth that will enhance the social, economical and environmental aspects of the settlement. This will result in a development framework of the whole site, a master plan for the lifespan of the settlement and detailed design of the heart of the settlement. / Dissertation (ML(Prof))--University of Pretoria, 2009. / Architecture / unrestricted Greytown Spatial needs Community upliftment Spatial planning Poor infrastructure Environmental rehabilitation Expression of time Umvuti municipality Site analysis Kwasizabantu Mission station Technical drawings Road system hierarchy Placemaking Urban fabric Continuos movement system Settlement legibility Interconnectedness of functions Direct connections between functions Development zones Waste management Circulation analysis Drainage management Circulation planning Natural conservation management Ideal relationships for development Functional zones Remedial work Structuring actions Holding actions Growth directions Development framework Site plan Master plan Sketch plan Necessitous use Guild design Permaculture Access to the countryside The in-between Cultural context Open space system Multi-use of spaces Visual analysis Future development Self-supportive Hierarchy of spaces Stanger Traditional authority areas Short mist belt grasslands biome Jammerdaal farm Erlo stegen Tabitha school Settlement character Settlement character expression Development context Development boundaries Site planning Baseline information Design decision Economical context Environmental context UCTD

Page generated in 0.0567 seconds